On today's society, titanium dioxide market ichthyosaurs mixed beads, fake and gone. As seen extensive use of titanium dioxide, and medium-sized enterprises once order is in tonnes, some unscrupulous vendors will take the risk, shoddy, to the customer's sample is genuine, but when the time for the real thing, took leave acts as genuine goods to customers to send in the past. When a customer found fake, when, with regard to a variety of reasons, he said the same goods with the sample, it is impossible to return. Because of rutile titanium dioxide price is relatively high, and large amount of counterfeit products on the market more, including the following aspects:
(1) will be made of titanium dioxide packaged into imports.
(2) posing anatase titanium dioxide rutile or anatase titanium dioxide in adding rutile type.
(3) mixed with calcium carbonate, lithopone, barium sulfate filler in rutile titanium dioxide or anatase titanium dioxide in.
Here we will introduce several methods of self-testing the authenticity of Titanium Dioxide:
Resources, suppliers
Each batch of titanium dioxide has a corresponding SGS test report, which is the supplier of the goods from the manufacturer to pull back, manufacturers will give suppliers. Secondly, if the imports of titanium white, then the customer may require suppliers to provide import and export customs authorities proof issued. Finally, customers can also provide presentation materials requirements to suppliers of products, presentation materials should include the following:
1.TiO2% represents whiteness, hiding power (opacity, color intensity), the higher the percentage content, whiteness, hiding power is greater.
2.Al2O3% indicates dispersion, gloss, weather resistance (through dense aluminum processing), the percentage content of higher dispersion, the greater the luster.
3.SiO2% indicates weathering (through dense silicon processing), the higher the percentage content, the greater weather resistance.
The organics with organic coating, dispersion (wetting) better.
5.ColorL represents whiteness, brightness (luminance).
6. The average particle size determines the light scattering, shielding. The smaller the particle, the more biased tone blue phase titanium dioxide.
7. affect the gloss oil absorption, dispersion system.
8. The resistance value represents the soluble salt content.
Second, by identifying package
Imports of titanium dioxide in its packaging usually has its own characteristics (such as patterns, fonts, batch number, etc.), the first can be identified on their packaging, and secondly, imports of titanium dioxide are characteristic of the seal, no seal with domestic titanium dioxide same.
Third, the physical detection method
1. The simplest method is to compare handle, false slippery titanium dioxide, titanium dioxide compared with astringent true.
2. flush. Hand dip titanium dioxide, fake easily wash away, really not easy to wash away.
3. Take a glass of water, throw into titanium dioxide, float is true, settling down is false.
Fourth, the chemical detection method
1. mixed with light calcium or GCC: dilute sulfuric acid or hydrochloric acid, bubbles can clarify the cloudy limewater, because the acid reacts with the calcium carbonate to produce carbon dioxide.
2. mixed with lithopone: dilute sulfuric acid or hydrochloric acid, the smell of rotten eggs.
3. made of latex paint, with iron red, dark, hiding poor explanation is false or poor quality of titanium dioxide.
4. For mixed BaSO4, and because it can not react with the acid, generally only use X- diffraction to identify.
5. For anatase titanium dioxide rutile posing with ordinary chemical methods are difficult to distinguish, can only be identified by X- diffraction.
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